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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,147 @@ | ||
| export default () => 'Hello World!' | ||
| import type { URLSearchParametersOptions, ValueOf } from './types.js' | ||
| import { CONTENT_TYPE, isPlainObject, normalizeUrl } from './utils.js' | ||
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| export type * from './types.js' | ||
| export * from './utils.js' | ||
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| export const ApiMethod = { | ||
| GET: 'GET', | ||
| POST: 'POST', | ||
| PATCH: 'PATCH', | ||
| PUT: 'PUT', | ||
| DELETE: 'DELETE', | ||
| } as const | ||
|
|
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| export type ApiMethod = ValueOf<typeof ApiMethod> | ||
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| export interface FetchApiOptions extends Omit<RequestInit, 'body' | 'method'> { | ||
| method?: ApiMethod | ||
| body?: BodyInit | object | ||
| query?: URLSearchParametersOptions | ||
| json?: boolean | ||
| type?: 'arrayBuffer' | 'blob' | 'json' | 'text' | null | ||
| } | ||
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| export interface InterceptorRequest extends FetchApiOptions { | ||
| url: string | ||
| } | ||
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| export type ApiInterceptor = ( | ||
| request: InterceptorRequest, | ||
| next: (request: InterceptorRequest) => PromiseLike<Response>, | ||
| ) => PromiseLike<Response> | Response | ||
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|
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| export interface ResponseError<T = never> extends Error { | ||
| data?: T | null | ||
| response?: Response | null | ||
| } | ||
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| export class ApiInterceptors { | ||
| readonly #interceptors: ApiInterceptor[] = [] | ||
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| get length() { | ||
| return this.#interceptors.length | ||
| } | ||
|
|
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| at(index: number) { | ||
| return this.#interceptors.at(index) | ||
| } | ||
|
|
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| use(...interceptors: ApiInterceptor[]) { | ||
| this.#interceptors.push(...interceptors) | ||
| return this | ||
| } | ||
|
|
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| eject(interceptor: ApiInterceptor) { | ||
| const index = this.#interceptors.indexOf(interceptor) | ||
| if (index > -1) { | ||
| this.#interceptors.splice(index, 1) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
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| export const createFetchApi = () => { | ||
| const interceptors = new ApiInterceptors() | ||
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| function fetchApi( | ||
| url: string, | ||
| options: FetchApiOptions & { type: null }, | ||
| ): Promise<Response> | ||
| function fetchApi( | ||
| url: string, | ||
| options: FetchApiOptions & { type: 'arraybuffer' }, | ||
| ): Promise<ArrayBuffer> | ||
| function fetchApi( | ||
| url: string, | ||
| options: FetchApiOptions & { type: 'blob' }, | ||
| ): Promise<Blob> | ||
| function fetchApi( | ||
| url: string, | ||
| options: FetchApiOptions & { type: 'text' }, | ||
| ): Promise<string> | ||
| function fetchApi<T>( | ||
| url: string, | ||
| options?: FetchApiOptions & { type?: 'json' }, | ||
| ): Promise<T> | ||
| // eslint-disable-next-line sonarjs/cognitive-complexity | ||
| async function fetchApi( | ||
| url: string, | ||
| { | ||
| method = ApiMethod.GET, | ||
| body, | ||
| headers, | ||
| json = body != null && (isPlainObject(body) || Array.isArray(body)), | ||
| type = 'json', | ||
| ...rest | ||
| }: FetchApiOptions = {}, | ||
| ) { | ||
| headers = new Headers(headers) | ||
|
|
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| if (json && !headers.has(CONTENT_TYPE)) { | ||
| headers.append(CONTENT_TYPE, 'application/json') | ||
| } | ||
|
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| let index = 0 | ||
|
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| const next = async (request: InterceptorRequest) => { | ||
| if (index < interceptors.length) { | ||
| return interceptors.at(index++)!(request, next) | ||
| } | ||
| const { body, url, query, ...rest } = request | ||
| const response = await fetch(normalizeUrl(url, query), { | ||
| ...rest, | ||
| body: json ? JSON.stringify(body) : (body as BodyInit), | ||
| }) | ||
| if (response.ok) { | ||
| return response | ||
| } | ||
| let data: unknown = null | ||
| if (type != null) { | ||
| try { | ||
| data = await response.clone()[type]() | ||
| } catch { | ||
| data = await response.clone().text() | ||
| } | ||
| } | ||
| throw Object.assign(new Error(response.statusText), { | ||
| data, | ||
| response, | ||
| }) | ||
| } | ||
|
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| const response = await next({ | ||
| url, | ||
| method, | ||
| body, | ||
| headers, | ||
| ...rest, | ||
| }) | ||
| return type == null ? response : response.clone()[type]() | ||
| } | ||
|
|
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| return { interceptors, fetchApi } | ||
| } | ||
|
|
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| export const { interceptors, fetchApi } = createFetchApi() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| export type Nullable<T> = T | null | undefined | ||
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| export type ValueOf<T> = T[keyof T] | ||
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| export type URLSearchParametersInit = ConstructorParameters< | ||
| typeof URLSearchParams | ||
| // eslint-disable-next-line @typescript-eslint/no-magic-numbers | ||
| >[0] | ||
|
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| export type URLSearchParametersOptions = | ||
| | Record<string, Nullable<number | string>> | ||
| | URLSearchParametersInit | ||
| | object |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| import { | ||
| Nullable, | ||
| URLSearchParametersInit, | ||
| URLSearchParametersOptions, | ||
| ValueOf, | ||
| } from './types.js' | ||
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| export const CONTENT_TYPE = 'Content-Type' | ||
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| // eslint-disable-next-line @typescript-eslint/unbound-method | ||
| const { toString } = Object.prototype // type-coverage:ignore-line - TODO: report bug | ||
|
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| const objectTag = '[object Object]' | ||
|
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| export const isPlainObject = <T extends object>(value: unknown): value is T => | ||
| toString.call(value) === objectTag | ||
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| export const cleanNilValues = <T = unknown>(input: T, empty?: boolean): T => { | ||
| if (!isPlainObject(input)) { | ||
| return input | ||
| } | ||
|
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| for (const _key of Object.keys(input)) { | ||
| const key = _key as keyof T | ||
| const value = input[key] as Nullable<ValueOf<T>> | ||
| if (empty ? !value : value == null) { | ||
| delete input[key] | ||
| } else { | ||
| input[key] = cleanNilValues(value, empty) as (T & object)[keyof T] | ||
| } | ||
| } | ||
|
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| return input | ||
| } | ||
|
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| export const normalizeUrl = ( | ||
| url: string, | ||
| query?: URLSearchParametersOptions, | ||
| ) => { | ||
| const search = new URLSearchParams( | ||
| cleanNilValues(query, true) as URLSearchParametersInit, | ||
| ).toString() | ||
| return search ? url + (url.includes('?') ? '&' : '?') + search : url | ||
| } |
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